By Greg Ness (Infoblox)

Virtualization and cloud computing have generated plenty of buzz because of their potential to reshape the economics of information and technology.  Yet most of that potential is still “cooped up” in the VLAN, driving impressive gains in server management, yet within strict confines.

The promise of VMotion across VLANs or even facilities and national borders in pursuit of momentary advantage (electricity, taxes, geo-specific traffic demands, utilization, etc) has yet to be fulfilled, but it is at the core of the virtualization and cloud promise.  [..]